In large saucepan, bring 2 quarts water to rolling boil.,Place peppers in boiling water and cook for 15 minutes.,Drain; arrange, cut side up, around bottom of ungreased pie pan.,Heat oven to 350°.,______,Heat to boiling.,Remove from heat; stir in potato flakes, milk and egg. Mix well.,Stir in sausage; spoon into pepper lined pan.,Arrange tomato wedges on top.,Sprinkle with cheese and bake at 350° for 15 to 20 minutes.,Serves 6.